February 13, 2012 at 21:51Stroboscopic Valentine
Dedicated to all lovers.
Product 18/12 "Valentine's strobe" is intended for non-verbal transmission of messages of sympathy to members of the opposite sex.
The product contains a power supply, an 8bit AVR microcontroller and a line of 8 LEDs. When the button is pressed, the microcontroller enters the operating state and within 30 seconds turns on and off the LEDs in a certain sequence. When the product moves, due to the inertia of vision, the illusion of a drawing floating in the air is created.
The printed circuit board is made using photoresist technology , but everyone can use LUT.
Any device starts with an idea. An idea is embodied in a drawing or in a model. For example in Eagle:
LEDs do not have current limiting resistors, as in this operating mode (short-term) and with battery power (internal resistance intervenes) their absence is not critical. The microcontroller is in sleep mode, from which it cannot exit on its own (there is no quartz resonator), therefore, it starts by applying the RESET signal using the button.
Everything was done faster, so many decisions are not as elegant as we would like. With proper dexterity, it takes a couple of hours to make a valentine. The archive has a circuit and a printed circuit board, if you wish, you can convert the valentine card to mega in the DIP package, and to ordinary 5 mm LEDs. Soldering and making the board will be much easier, but the dimensions of the thickness of the valentine will increase.
All parts are mounted on one side of the board, the battery holder is soldered neatly with a thin sting in the gap between the board and plastic.
Next, we make a printed circuit board. Rolls of film photoresist and photomask print:
exposing:
manifest and obtain the mask for etching:
Herbs:
Solder elements and temporary solder interface to fill in the MC firmware. MGTF wire is gorgeous:
we remove all unnecessary with scissors for metal and emery:
If you press the button and wave the Valentine, you can see the pattern sewn into it. If you do this while shooting at a slow shutter speed, you can make love light Graffiti.
As far as possible, you can see the effect on the video, unfortunately in the recording it is worse than in reality:youtu.be/hahGi1lWp7k You
should pay particular attention to the fact that the product 18/12 provides a strategic advantage over representatives of the humanitarian professions.
The archive with the printed circuit board, firmware and bydcode can be downloaded here.
PS As usual - this is the only repost associated with the frailty and unreliability of the server, which simply can not stand the habraeffect. Original article .
Product 18/12 "Valentine's strobe" is intended for non-verbal transmission of messages of sympathy to members of the opposite sex.
The product contains a power supply, an 8bit AVR microcontroller and a line of 8 LEDs. When the button is pressed, the microcontroller enters the operating state and within 30 seconds turns on and off the LEDs in a certain sequence. When the product moves, due to the inertia of vision, the illusion of a drawing floating in the air is created.
The printed circuit board is made using photoresist technology , but everyone can use LUT.
Any device starts with an idea. An idea is embodied in a drawing or in a model. For example in Eagle:
LEDs do not have current limiting resistors, as in this operating mode (short-term) and with battery power (internal resistance intervenes) their absence is not critical. The microcontroller is in sleep mode, from which it cannot exit on its own (there is no quartz resonator), therefore, it starts by applying the RESET signal using the button.
Everything was done faster, so many decisions are not as elegant as we would like. With proper dexterity, it takes a couple of hours to make a valentine. The archive has a circuit and a printed circuit board, if you wish, you can convert the valentine card to mega in the DIP package, and to ordinary 5 mm LEDs. Soldering and making the board will be much easier, but the dimensions of the thickness of the valentine will increase.
All parts are mounted on one side of the board, the battery holder is soldered neatly with a thin sting in the gap between the board and plastic.
Next, we make a printed circuit board. Rolls of film photoresist and photomask print:
exposing:
manifest and obtain the mask for etching:
Herbs:
Solder elements and temporary solder interface to fill in the MC firmware. MGTF wire is gorgeous:
we remove all unnecessary with scissors for metal and emery:
If you press the button and wave the Valentine, you can see the pattern sewn into it. If you do this while shooting at a slow shutter speed, you can make love light Graffiti.
As far as possible, you can see the effect on the video, unfortunately in the recording it is worse than in reality:youtu.be/hahGi1lWp7k You
should pay particular attention to the fact that the product 18/12 provides a strategic advantage over representatives of the humanitarian professions.
The archive with the printed circuit board, firmware and bydcode can be downloaded here.
PS As usual - this is the only repost associated with the frailty and unreliability of the server, which simply can not stand the habraeffect. Original article .